Time and Work - Comprehensive Mock Test 4

Question 31 Hard

5 men and 2 women working together can do four times as much work per hour as a man and a woman together. The work done by a man and a woman should be in the ratio ?

A) 1 : 2 B) 2 : 1 C) 1 : 3 D) 4 : 1

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Question 32 Hard

24 men can complete a work in 16 days. 32 women can complete the same work in 24 days. 16 men and 16 women worked for 12 days. How many more men are required to complete the remaining work in 2 days?

A) 36 B) 24 C) 32 D) 34

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Question 33 Hard

A can make a cupboard in 10 days and B can do it in 50 days. Along with C, they did the job in 6.25 days only. Then in how many days C alone can do the job?

A) 20 B) 25 C) 16 D) 15

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Question 34 Medium

24 men can do a piece of work in 17 days. How many men will be able to do it in 51 days ?

A) 8 B) 10 C) 12 D) 6

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Question 35 Hard

X can do a piece of work in ‘P’ days and Y can do the same work in ‘q’ days . Then the number of days in which X & Y can together do that work is?

A) (p+q)/2 B) (1/p +1/q) C) (pq)/(p+q) D) pq

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Question 36 Hard

If a man rows at the rate of 5 kmph in still water and his rate against the current is 3.5 kmph. then the man's rate along the current is?

A) 4.25 kmph B) 6 kmph C) 6.5 kmph D) 8.5 kmph

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Question 37 Hard

A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. The ratio of the speed of the boat (in still water) and the stream is?

A) 2 : 1 B) 3 : 1 C) 3 : 2 D) 4 : 3

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Question 38 Hard

Speed of a boat in standing water is 9 kmph and the speed of the stream is 1.5 kmph. A man rows to a place at a distance of 105 km and comes back to the starting point. The total time taken by him is?

A) 16 hours B) 18 hours C) 20 hours D) 24 hours

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Question 39 Hard

A man can row three-quarters of a kilometre against the stream in 11 minutes and down the stream in 7 minutes. The speed (in km/hr) of the man in still water is?

A) 2 B) 3 C) 4 D) 5

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Question 40 Hard

A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will it take to go 5 km in stationary water?

A) 40 minutes B) 1 hour C) 1 hr 15 min D) 1 hr 30 min

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Solution Breakdown:

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